Strawberry plant named ‘DrisStrawTwentyFive’

ABSTRACT

A new and distinct variety of strawberry plant named ‘DrisStrawTwentyFive’ characterized by having very large sized, conical fruit with strong sweetness and high yield is disclosed.

Genus and species: Fragaria×ananassa.

Variety denomination: ‘DrisStrawTwentyFive’.

BACKGROUND OF THE NEW PLANT

The present invention relates to a new and distinct strawberry varietydesignated ‘DrisStrawTwentyFive’ and botanically known asFragaria×ananassa. This new strawberry variety was discovered in VenturaCounty, Calif. in January 2007 and originated from a cross between theproprietary female parent ‘18L33’ (unpatented) and the proprietary maleparent ‘192M122’ (unpatented). A single plant was selected for asexualpropagation via tissue culture and vegetative cuttings in Shasta County,Calif. in 2007.

‘DrisStrawTwentyFive’ underwent further testing in Ventura County,Calif. for five years (2007-2011). The present invention has been foundto retain its distinctive characteristics through successive asexualpropagations via stolons.

Plant Breeder's Rights for this variety have not been applied for.‘DrisStrawTwentyFive’ has not been made publicly available or sold morethan one year prior to the filing date of this application.

SUMMARY OF THE INVENTION

The following are the most outstanding and distinguishingcharacteristics of this new cultivar when grown under normalhorticultural practices in Ventura County, Calif.

-   -   1. High yield;    -   2. Very large, conic shaped fruit; and    -   3. Strong sweetness.

DESCRIPTION OF THE PHOTOGRAPHS

The accompanying color photographs show typical specimens of the newvariety at various stages of development. The colors shown are as trueas can be reasonably obtained by conventional photographic procedures.The photographs were taken from six-month-old plants.

FIG. 1 shows overall plant habit including fruit at various stages ofdevelopment.

FIG. 2 shows upper and lower surfaces of the leaves of the plant withthree leaflets.

FIG. 3 shows both upper and lower surfaces of the flowers.

FIG. 4 shows the whole fruit.

FIG. 5 shows the fruit in longitudinal cross-section.

DESCRIPTION OF THE NEW VARIETY

The following detailed descriptions set forth the distinctivecharacteristics of ‘DrisStrawTwentyFive’. The data which define thesecharacteristics is based on observations taken in Ventura County, Calif.from 2007 to 2011. This description is in accordance with UPOVterminology. Color designations, color descriptions, and otherphenotypical descriptions may deviate from the stated values anddescriptions depending upon variation in environmental, seasonal,climatic, and cultural conditions. ‘DrisStrawTwentyFive’ has not beenobserved under all possible environmental conditions. The botanicaldescription of ‘DrisStrawTwentyFive’ was taken from six-month-oldplants. Color references are primarily to The R.H.S. Colour Chart of TheRoyal Horticultural Society of London (R.H.S.) (2001 edition).Descriptive terminology follows the Plant Identification Terminology, AnIllustrated Glossary, 2^(nd) edition by James G. Harris and MelindaWoolf Harris, unless where otherwise defined.

DETAILED BOTANICAL DESCRIPTION OF THE PLANT

-   Classification:    -   -   Species.—Fragaria×ananassa.        -   Common name.—Strawberry.        -   Denomination.—‘DrisStrawTwentyFive’.-   Parentage:    -   -   Female parent.—The proprietary variety ‘18L33’ (unpatented).        -   Male parent.—The proprietary variety ‘192M122’ (unpatented).-   Plant:    -   -   Height.—21.1 cm.        -   Diameter.—38.9 cm.        -   Number of crowns/plant.—3.        -   Habit.—Flat globose.        -   Density of individual plant.—Medium.        -   Vigor (health and hardiness of plant).—Medium.-   Terminal leaflets:    -   -   Size.—Medium. Length: 7.8 cm. Width: 8.1 cm. Length/width            ratio: 1.0 (As long as broad).        -   Number of teeth/terminal leaflet.—24.        -   Shape of teeth.—Rounded — crenate.        -   Color.—Upper surface: RHS 139A (Dark green). Lower surface:            RHS 146B (Medium yellow-green).        -   Shape in cross section.—Concave.        -   Blistering.—Medium.        -   Glossiness.—Medium.        -   Number of leaflets.—Three only.        -   Shape.—Orbicular.        -   Base shape.—Rounded.        -   Apex descriptor.—Rounded.        -   Variegation.—Absent.        -   Margin.—Crenate.        -   Margin profile.—Revolute (margins rolled backwards).-   Petiole:    -   -   Length.—13.3 cm.        -   Diameter.—5.64 mm.        -   Pubescence.—Dense.        -   Pose of hairs.—Outwards-horizontal.        -   Color.—RHS 146D (Medium yellow-green).-   Petiolule:    -   -   Length.—7.82 mm.        -   Diameter.—2.18 mm.        -   Bract frequency.—0.        -   Color.—RHS 146D (Medium yellow-green).-   Stipule:    -   -   Length.—3.7 cm.        -   Width.—11.59 mm.        -   Pubescence.—Dense.        -   Stipule anthocyanin coloration.—Weak; RHS 35C (Light            orange-red).-   Stolon:    -   -   Number.—Many.        -   Average number of daughter plants per plant.—59.        -   Stolon anthocyanin.—Medium; RHS 51A (Medium red).        -   Thickness.—Thick.        -   Pubescence.—Dense.-   Inflorescence:    -   -   Position relative to foliage.—Above.        -   Number of flowers.—Medium.        -   Time of flowering (50% of plants at first flower).—Early.        -   Flower size.—Medium.        -   Flower diameter.—40.11 mm.        -   Petals.—Shape: Orbicular. Apex: Rounded. Base:            Concavo-convex. Margin: Entire. Spacing: Overlapping.            Length: 16.57 mm. Width: 18.13 mm. Length/width ratio: As            long as broad; 0.9. Typical and observed petal number per            flower: 7. Color (upper surface): RHS 155B (White).        -   Calyx.—Diameter: 49.36 mm. Diameter relative to corolla:            Larger. Inner calyx diameter relative to outer: Smaller.            Insertion of calyx: Level. Pose of calyx segments: Reflexed            — upwards. Size of calyx in relation to fruit: Slightly            larger. Adherence of calyx: Very strong.        -   Sepal.—Shape: Elliptical. Apex: Convex. Margin: Entire.            Length: 19.19 mm. Width: 9.37 mm. Typical and observed sepal            number per flower: 13.        -   Receptacle color.—RHS 1B (Medium green-yellow).        -   Stamen.—Present. Anther color: RHS 16A (Medium            yellow-orange).        -   Pedicel.—Attitude of hairs: Outwards — horizontal.-   Fruiting truss:    -   -   Length.—Medium; 19.4 cm.        -   Diameter at base of truss.—3.18 mm.        -   Number of berries per fruiting truss.—1.        -   Attitude at first picking.—Prostrate.        -   Color at base of truss.—RHS 144B (Light yellow-green).-   Fruit:    -   -   Relative fruit size.—Very large.        -   Length.—59.09 mm.        -   Width.—54.24 mm.        -   Length/width ratio.—1.1 (As long as broad).        -   Fruit hollow length.—26.18 mm.        -   Fruit hollow width.—18.10 mm.        -   Fruit hollow length/width ratio.—1.4.        -   Fruit hollow center (cavity).—Large.        -   Weight (per individual berry).—33.6 g.        -   Predominant fruit shape.—Conical.        -   Difference in shape between primary and secondary            fruits.—Slight.        -   Evenness of fruit surface.—Even or very slightly uneven.        -   Fruit skin color.—RHS 46B (Dark red).        -   Evenness of fruit color.—Even or very slightly uneven.        -   Fruit glossiness.—Medium.        -   Achenes.—Insertion of achenes: Level with surface.            Coloration (sunward side of berry): RHS 179B (Medium            greyed-red). Coloration (shaded side of berry): RHS 153B            (Medium yellow-green). Number per berry: 232. Weight (weight            achenes divided by total # seed): 0.000581713. Width of band            without achenes: Broad.        -   Firmness of flesh.—Firm.        -   Color of flesh (excluding core).—RHS 33B (Medium orange-red)            and RHS 155D (White).        -   Color of core.—RHS 33B (Medium orange-red).        -   Evenness of flesh color.—Even.        -   Distribution of flesh color.—Marginal and central.        -   Sweetness.—Strong.        -   Acidity.—Medium.        -   Texture when tasted.—Medium.        -   Type of bearing.—Not everbearing — not remontant.        -   Grams of fruit/plant.—1208.0 g.        -   Harvest interval.—Late December — July.        -   Harvest maturity.—Early.-   Disease, pest, and stress resistance:    -   -   Botrytis fruit rot.—Susceptible.        -   Powdery mildew.—Susceptible.        -   Verticillium wilt.—Moderately resistant.        -   Xanthomonas fragariae.—Moderately resistant.        -   Aphis spp. (Aphids).—Susceptible.        -   Lygus hesperus (Lygus bug).—Susceptible.        -   Wind.—Moderately resistant.        -   High temperatures.—Moderately susceptible.        -   High pH.—Moderately resistant.        -   High soil salt levels.—Moderately resistant.

COMPARISON WITH PARENTAL AND COMMERCIAL VARIETIES

When ‘DrisStrawTwentyFive’ is compared to the proprietary female parent‘18L33’ (unpatented), ‘DrisStrawTwentyFive’ has larger fruit, a simplerfruit truss, better flavor, lighter colored fruit, and earlier fruitingthan ‘18L33’ and is more vigorous and higher yielding than ‘18L33’.

When ‘DrisStrawTwentyFive’ is compared to the proprietary male parent‘192M122’ (unpatented), ‘DrisStrawTwentyFive’ has earlier fruit, betterflavor, better shelf-life, and a more conic shaped fruit than ‘192M122’and is more vigorous than ‘192M122’.

When ‘DrisStrawTwentyFive’ is compared to the commercial variety‘Driscoll El Dorado’ (U.S. Plant Pat. No. 16,238), ‘DrisStrawTwentyFive’has medium interveinal leaf blistering, dense petiole pubescence andthick stolons, while ‘Driscoll El Dorado’ has weak interveinal leafblistering, sparse to medium petiole pubescence and thin stolons.Additionally, ‘DrisStrawTwentyFive’ is not everbearing and has fruitwith a broad band without achenes, while ‘Driscoll El Dorado’ ispartially everbearing and has fruit with a narrow to medium band withoutachenes.

When ‘DrisStrawTwentyFive’ is compared to the commercial variety‘DrisStrawEight’ (U.S. Plant Pat. No. 20,735), ‘DrisStrawTwentyFive’ hasmedium leaf glossiness, a crenate terminal leaflet margin, and a roundedterminal leaflet base, while ‘DrisStrawEight’ has weak leaf glossiness,a revolute terminal leaflet margin, and an obtuse terminal leaflet base.Additionally, ‘DrisStrawTwentyFive’ has thick stolons with densepubescence, while ‘DrisStrawEight’ has thin stolons with absent or verysparse pubescence.

1. A new and distinct variety of strawberry plant named ‘DrisStrawTwentyFive’ as described and shown herein. 